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Passive Optical Networks
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ALSO CALLED: PON
DEFINITION: A passive optical network (PON) is a system that brings optical fiber cabling and signals all or most of the way to the end user. Depending on where the PON terminates, the system can be described as fiber-to-the-curb (FTTC), fiber-to-the-building (FTTB), or fiber-to-the-home
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PASSIVE OPTICAL NETWORKS DEFINITION (continued): … (FTTH). A PON consists of an Optical Line Termination (OLT) at the communication company's office and a number of Optical Network Units (ONUs) near end users. Typically, up to 32 ONUs can be connected to an OLT. The passive simply describes the fact that optical transmission has no power requirements or active electronic parts once the signal is going through the network. In a stand-alone system, a PON could deliver up to 622 Mbps downstream to the user and up to 155 Mbps …
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